Question

1. which of the following statements is untrue about gravity? a. it is an attractive force between any 2 objects that depends on the masses of the objects and the distance between them. b. it increases as the mass of 2 objects increases. c. if two objects are closer together, the gravitational force between them increases. d. the sun has little mass, but its too far away to exert an attraction you can feel. 8. if you were on the moon, what would change? a. your mass b. your height c. your weight d. your cells 9. what is the relationship between mass and weight? a. weight is a force. b. mass is the measure of the amount of matter of an object. c. the greater an objects mass, the stronger the gravitational force between the object and earth. d. all of the above 10. a squirrel has a mass of 0.5 kg. what is its weight? gravitational strength equals 9.8 n/kg. a. 0.49 n b. 49 n c. 49,000 n d. 4.9 n why is gravity called a long - range force? the law of universal gravitation states that the gravitational force between two masses decreases as the distance between them increases. suppose the distance between two objects increased from 1 m to 2 m. then the gravitational force between them becomes one - fourth as large. if the distance between them becomes 10 m, the gravitational force between the objects is one - hundredth as large. no matter how far apart two objects are, the gravitational force between them never completely goes to zero. gravity is called a long - range force. no matter how long the distance is between two objects, gravity never disappears. because contact between objects is not required, gravity is sometimes discussed as a field. a field is a region of space that has a physical quantity (such as a force) at every point. all objects are surrounded by a gravitational field. earths gravitational field is strongest near earth and becomes weaker as the distance from earth increases. is there a difference between weight and mass? weight and mass are not the same. weight is a force. mass is a measure of the amount of matter in an object. but weight and mass are related. the greater an objects mass, the stronger the gravitational force between the object and earth. weight is the gravitational force on an object. your weight on earth is greater than your weight on the moon because earth has a greater mass than the moon. weight is found using the following equation. the letter g represents the acceleration of gravity. weight (w)=mass (m)×acceleration of gravity (m/s²) w = mg what is gravity? at this moment you are exerting an attractive force on everything around you—your classmates, and even the planet jupiter, millions of kilometers away. this attractive force acts on all objects with mass and is called gravity. gravity increases as the mass of objects and the distance between them increases. the objects that are closer to each other. you cant feel the force between you and your desk because the force is weak. earth is both close and has a large enough mass that you can feel its gravitational attraction. the sun has more mass, but it is too far away to exert an attraction you can feel. the law of universal gravitation the law of universal gravitation lets us find the force of gravity between any two objects if their masses and the distance between them are known. here is an equation for the law: gravitational force (constant)×(mass 1)×(mass 2) distance² f = g m₁m₂ d² in this equation, g is the constant called the universal gravita - tional constant. a constant is an amount that never changes. the variable d is the distance between the two masses, m₁ and m₂.

Explanation:

The questions pertain to the concepts of gravity, gravitational force, mass, and weight which are fundamental in the study of Physics. The law of universal gravitation, the relationship between mass and weight, and the nature of gravitational fields are key - concepts being tested.

Answer:

1. A. It is an attractive force between any 2 objects that depends on the masses of the objects and the distance between them.
2. B. your height
3. Weight is a force. Mass is the measure of the amount of matter of an object. Weight is found using the equation W = mg where g represents the acceleration of gravity.
4. C. 4.9 N (using W = mg, with m = 0.5 kg and g = 9.8 m/s², so W=0.5×9.8 = 4.9 N)